Mongo DB ObjectId request matching

gistfile1.scala

object Oid {
  def unapply(s: String): Option[ObjectId] = {
    if(ObjectId.isValid(s)) Some(new ObjectId(s))
    else None
  }
}

…

def intent = {
  case req @ Path(Seg("users" :: Oid(id) :: Nil)) => {
    // Fun stuff here
  }
}